Question

The radii of two circular cylinders are in the ratio of 1 : 2 and their heights are in the ratio of 3 : 4.
Calculate the ratio of their curved surfaces.​

Answer 1

Answer:

3:8

Step-by-step explanation:

Given,

The radii of two circular cylinders are in the ratio of 1 : 2

Let r1=1 and r2=2

their heights are in the ratio of 3 : 4.

Let h1=3 and h2=4

Calculate the ratio of their curved surfaces.​

we know curved surface area of cylinder is 2*π*r*h

here two cylinders then,the ratio between cylinders are

2*π*r1*h1/ 2*π*r2*h2=r1*h1/r2*h2

1*3/2*4=3/8